Offsite construction (OSC) offers a promising alternative for accelerating refurbishment projects across Italy and Europe. However, its adoption remains limited due to technical, regulatory, and cultural barriers. This study, conducted as part of the OFFICIO project, maps the current European OSC landscape, with a focus on wood and light-steel technologies for sustainable building refurbishment. Combining a literature review, analysis of funded projects, and market data for 541 OSC products, the study develops tailored KPIs to assess these products’ technical maturity, prefabrication level, and environmental integration. The results reveal that wood-based OSC, although less widespread, is more mature and centered on the use of multi-layer panels, while steel-based systems, though more prevalent, remain largely tied to semi-offsite construction, indicating untapped development potential. Research efforts, especially concentrated in Mediterranean regions, focus on technological integration of renewable energy systems. A significant literature gap was identified in information concerning panel-to-wall connection, critical for renovation, limiting OSC’s adaptability to regeneration of existing buildings. The findings highlight the need for cross-sector collaboration, legislative clarity, and better alignment of public procurement standards with OSC characteristics. Addressing these issues is essential to bridge the gap between research prototypes and industrial adoption and accelerate the sustainable transformation of Europe’s construction sector to help meet climate neutrality targets.

Mountain huts face unique challenges in waste management due to their altitude, accessibility, and seasonal variability. However, quantitative data on waste generation in these contexts remain limited, hindering evidence-based decision-making. This study proposes a replicable methodology to quantify waste generation in mountain huts and to assess the feasibility of on-site recycling. The framework is applied to a one-year case study of Rifugio Stoppani, selected as a representative case study within the Italian Alpine Club hut classification system. The method combines unstructured interviews, structured collection of product-consumption data, and a workflow that models a typical year of hut attendance, enabling the reconstruction of annual waste flows by material. Results show that plastic and glass represent more than 75% of the total waste mass and that even relatively small quantities generate significant logistical burdens, requiring approximately 65 h of annual transport due to the absence of local collection systems. The study further evaluates the feasibility of on-site plastic recycling through low-scale injection moulding, demonstrating the potential to convert locally generated waste into functional objects and reduce transport effort by up to 83%. The proposed framework provides a transferable method for waste flow modelling in remote mountain infrastructures and supports the evaluation of localized circular economy strategies across the Italian Alpine Club hut network.